X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=dev%2Fetherpkt.hh;h=7a7809f0a1f12f5ad8a34f73d0df335938d05c94;hb=86836124ed272945e9d360c068728cd03917398d;hp=09516c427c54077b69a2efef237c5beb99c10b1f;hpb=f4168a708c15c219a968d9cd665b571705467875;p=gem5.git diff --git a/dev/etherpkt.hh b/dev/etherpkt.hh index 09516c427..7a7809f0a 100644 --- a/dev/etherpkt.hh +++ b/dev/etherpkt.hh @@ -1,5 +1,5 @@ /* - * Copyright (c) 2003 The Regents of The University of Michigan + * Copyright (c) 2002-2004 The Regents of The University of Michigan * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -35,104 +35,34 @@ #include #include +#include -#include "sim/host.hh" #include "base/refcnt.hh" - -#define EADDR_LEN 6 - -class Checkpoint; - -struct pseudo_header -{ - uint32_t src_ip_addr; - uint32_t dest_ip_addr; - uint16_t protocol; - uint16_t len; -}; - -/** Ethernet header struct for casting purposes */ -struct eth_header -{ - uint8_t dest[EADDR_LEN]; - uint8_t src[EADDR_LEN]; - uint16_t type; -}; - -struct ip_header -{ - uint8_t vers_len; - uint8_t service_type; - uint16_t dgram_len; - uint16_t ID; - uint16_t flags_frag_offset; - uint8_t TTL; - uint8_t protocol; - uint16_t hdr_chksum; - uint32_t src_ip_addr; - uint32_t dest_ip_addr; - uint8_t *options; - uint8_t *transport_header; -}; - -struct tcp_header -{ - uint16_t src_port_num; - uint16_t dest_port_num; - uint32_t seq_num; - uint32_t ack_num; - uint8_t hdr_len; - uint8_t flags; - uint16_t rcv_window; - uint16_t chksum; - uint16_t urgent; - uint8_t *options; - uint8_t *data; -}; - -struct udp_header -{ - uint16_t src_port_num; - uint16_t dest_port_num; - uint16_t len; - uint16_t chksum; - uint8_t *data; -}; +#include "sim/host.hh" /* * Reference counted class containing ethernet packet data */ -class EtherPacket : public RefCounted +class Checkpoint; +class PacketData : public RefCounted { public: uint8_t *data; int length; public: - EtherPacket() : data(NULL), length(0) {} - EtherPacket(std::auto_ptr d, int l) - : data(d.release()), length(l) {} - ~EtherPacket() { if (data) delete [] data; } + PacketData() : data(NULL), length(0) { } + explicit PacketData(size_t size) : data(new uint8_t[size]), length(0) { } + PacketData(std::auto_ptr d, int l) + : data(d.release()), length(l) { } + ~PacketData() { if (data) delete [] data; } public: - bool IsUnicast() { return data[0] == 0x00; } - bool IsMulticast() { return data[0] == 0x01; } - bool IsBroadcast() { return data[0] == 0xff; } - - ip_header *getIpHdr() { return (ip_header *) (data + 14); } - - void *getTransportHdr() { - ip_header *ip = getIpHdr(); - return (void *) (ip + (ip->vers_len & 0xf)); - } - - - typedef RefCountingPtr PacketPtr; - - void serialize(std::ostream &os); - void unserialize(Checkpoint *cp, const std::string §ion); + void serialize(const std::string &base, std::ostream &os); + void unserialize(const std::string &base, Checkpoint *cp, + const std::string §ion); }; -typedef RefCountingPtr PacketPtr; +typedef RefCountingPtr PacketPtr; #endif // __ETHERPKT_HH__